In-Situ Observation of Influence of MgO on High Temperature Properties of Sinter Ore
PEI Yuan-dong1,2,3, WU Sheng-li1,2, ZHAO Zhi-xing3, AN Gang4, SU Bo1,2, PAN Wen3
1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China 2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China 3. Shougang Research Institute of Technology Beijing, Beijing 100043, China 4. Ironmaking Plant, Shougang Jingtang Co., Tangshan 063200, Hebei, China
Abstract:Sinter ore was solidified by liquid phase during sintering process, the formation and fluidity of the liquid phase on sinter quality plays a crucial role in determining quality of sinter ore. With the deterioration of ore resource quality, the TFe content of sinter decreased. Compared with Al2O3 and SiO2, MgO belongs to ingredients added voluntarily, and amount of MgO affects the melting and fluidity of melts and TFe of sinter ore. According to Jingtang mixture, effect of MgO in sintering mixture on sintering high temperature properties was in situ observed by confocal lasering scanning microscopy (CLSM for short)in the first time, and compared with sintering basic characteristics equipment. It can be found that, compared with blended ore without MgO, initial and massive melt forming temperature increase above 50 ℃ when adding MgO with the mass percent of it from 1.7% to 2.0%, and fluidity velocity decreases apparently. As the mass percent of MgO decreased from 2.3% to 0.3% in sintering basic characteristics test, fluidity index increases from 0.7 to 1.9 levels. At last, mass percent of MgO in sinter of Jingtang reduced from 2.0% to 1.5% with better sinter quality.
收稿日期: 2013-11-05
出版日期: 2014-11-02
引用本文:
裴元东 , 吴胜利 , 赵志星, 安 钢, 苏 博 , 潘 文. 原位观察MgO对烧结高温特性影响研究及应用[J]. 钢铁, 2014, 49(11): 14-19.
PEI Yuan-dong,,, WU Sheng-li,, ZHAO Zhi-xing, AN Gang, SU Bo,, PAN Wen. In-Situ Observation of Influence of MgO on High Temperature Properties of Sinter Ore. Iron and Steel, 2014, 49(11): 14-19.
何环宇,王庆祥 曾小宁.MgO含量对高炉炉渣粘度的影响.钢铁研究学报,2006,18(6): 11-13.21. (HE Huanyu, WANG Qingxiang, ZENG Xiaoning.Effet of MgO content on BF slag viscosity. Journal of Iron and Steel Research, 2006,41(3): 8-11.35)
[1]
何环宇,王庆祥 曾小宁.MgO含量对高炉炉渣粘度的影响.钢铁研究学报,2006,18(6): 11-13.21. (HE Huanyu, WANG Qingxiang, ZENG Xiaoning.Effet of MgO content on BF slag viscosity. Journal of Iron and Steel Research, 2006,41(3): 8-11.35)
[2]
张玉柱,耿明山,项利,等.MgO含量和碱度对高炉渣的黏度的影响.材料与冶金学报,2005, 4(4): 253-255. (ZHANG Yuzhu, GENG Mingshan, XIANG Li. The influence of MgO and basicity on the viscosity of BF slag. Journal of Materials and Metallurgy, 2005, 4(4): 253-255)
[2]
张玉柱,耿明山,项利,等.MgO含量和碱度对高炉渣的黏度的影响.材料与冶金学报,2005, 4(4): 253-255. (ZHANG Yuzhu, GENG Mingshan, XIANG Li. The influence of MgO and basicity on the viscosity of BF slag. Journal of Materials and Metallurgy, 2005, 4(4): 253-255)
[3]
姜鑫, 吴钢生,金明芳,等.MgO对烧结矿软熔性能的影响.东北大学学报(自然科学版),2006,27(12): 1358-1361. (JIANG Xin, WU Gangsheng, JIN Mingfang, et al.Effet of MgO on sintering process and metallurgical properties of sinter. Jourcal of Northeastern University(Natural Science), 2006,27(12): 1358-1361)
[3]
姜鑫, 吴钢生,金明芳,等.MgO对烧结矿软熔性能的影响.东北大学学报(自然科学版),2006,27(12): 1358-1361. (JIANG Xin, WU Gangsheng, JIN Mingfang, et al.Effet of MgO on sintering process and metallurgical properties of sinter. Jourcal of Northeastern University(Natural Science), 2006,27(12): 1358-1361)
[4]
甘勤,何群,文永才.MgO对钒钛烧结矿矿物组成及冶金性能影响的研究,2008,43(8): 7-11. (GAN Qin, HE Qun, WEN Yongcai, et al.Effet of Study on influence of MgO on mineral composition and metallurgical properties of V-bearing Titaniferous magnetite sinter. Iron and Steel, 2008,43(8): 7-11.)
[4]
甘勤,何群,文永才.MgO对钒钛烧结矿矿物组成及冶金性能影响的研究,2008,43(8): 7-11. (GAN Qin, HE Qun, WEN Yongcai, et al.Effet of Study on influence of MgO on mineral composition and metallurgical properties of V-bearing Titaniferous magnetite sinter. Iron and Steel, 2008,43(8): 7-11.)
[5]
姜鑫, 吴钢生,魏国,等.MgO对烧结工艺及烧结矿冶金性能的影响.钢铁,2006,41(3): 8-11.35. (JIANG Xin, WU Gangsheng, WEI Guo, et al.Effet of MgO on sintering process and metallurgical properties of sinter. Iron and Steel, 2006,41(3): 8-11.35)
[5]
姜鑫, 吴钢生,魏国,等.MgO对烧结工艺及烧结矿冶金性能的影响.钢铁,2006,41(3): 8-11.35. (JIANG Xin, WU Gangsheng, WEI Guo, et al.Effet of MgO on sintering process and metallurgical properties of sinter. Iron and Steel, 2006,41(3): 8-11.35)
[6]
吴胜利, 韩宏亮, 姜伟忠, 等. 烧结矿中MgO作用机理. 北京科技大学学报, 2009, 31(4): 428-432. (WU Sheng-li, HAN Hongliang, JIANG Weizhong, et al. MgO interaction mechanism in sinter. Journal of University of Science and Technology Beijing, 2009, 31(4): 428-432)
[6]
吴胜利, 韩宏亮, 姜伟忠, 等. 烧结矿中MgO作用机理. 北京科技大学学报, 2009, 31(4): 428-432. (WU Sheng-li, HAN Hongliang, JIANG Weizhong, et al. MgO interaction mechanism in sinter. Journal of University of Science and Technology Beijing, 2009, 31(4): 428-432)
[7]
Hisao KIMURA, Tsutomu OGAWA, Mitsuru KAKIKI, etc. Effect of Al2O3 and MgO Additions on Liquidus for the CaO-SiO2-FeOx System at 1573 K[J]. ISIJ International,2005,45(4): 506-512.
[7]
Hisao KIMURA, Tsutomu OGAWA, Mitsuru KAKIKI, etc. Effect of Al2O3 and MgO Additions on Liquidus for the CaO-SiO2-FeOx System at 1573 K[J]. ISIJ International,2005,45(4): 506-512.
[8]
Kohei YAJIMA, Hiroyuki MATSUURA and Fumitaka TSUKIHASHI, etc. Effect of simultaneous addition of Al2O3 and MgO on the liquidus of the CaO-SiO2-FeOx system with various oxygen partial pressures at 1573 K [J]. ISIJ International,2010,50(2): 191-194.
[8]
Kohei YAJIMA, Hiroyuki MATSUURA and Fumitaka TSUKIHASHI, etc. Effect of simultaneous addition of Al2O3 and MgO on the liquidus of the CaO-SiO2-FeOx system with various oxygen partial pressures at 1573 K [J]. ISIJ International,2010,50(2): 191-194.
[9]
吴胜利, 刘宇, 杜建新, 等. 铁矿石的烧结基础特性之新概念. 北京科技大学学报, 2002, 24(3): 254. (WU Sheng-li, LIU Yu, DU Jian-xin, et al. New concept of iron ores sintering basic characteristics. Journal of University of Science and Technology Beijing, 2002,24(3): 254)
[9]
吴胜利, 刘宇, 杜建新, 等. 铁矿石的烧结基础特性之新概念. 北京科技大学学报, 2002, 24(3): 254. (WU Sheng-li, LIU Yu, DU Jian-xin, et al. New concept of iron ores sintering basic characteristics. Journal of University of Science and Technology Beijing, 2002,24(3): 254)
[10]
Pei yuandong, Zhao baojun, Zhao Zhixing, etc. In Situ Observation of High Temperature Properties of Iron Ore and Its Application in Optimizing Sintering Ore Matching of SHOUGANG JINGTANG[C]//Asia steel2012, 2012:16
[10]
Pei yuandong, Zhao baojun, Zhao Zhixing, etc. In Situ Observation of High Temperature Properties of Iron Ore and Its Application in Optimizing Sintering Ore Matching of SHOUGANG JINGTANG[C]//Asia steel2012, 2012:16